<!DOCTYPE html>
<html>
	<head>
		<meta charset="UTF-8">
		<title></title>
		<style>
			.box1{
				width: 200px;
				height: 200px;
				background: red;
				display: none;
			}
		#sas:hover .box1{
				display: block;
			}
		</style>
	</head>
	<body>
		
		<div>
				<div>
		<!--<p>-->
		<a href="javascript:;" id="sas">重庆
			<div class="box1"></div>
		</a>
		<!--</p>-->
		</div>
		</div>
	</body>
</html>
